Programming Language and compiler
Benchmarks

D VS Ruby benchmarks

Current benchmark data was generated on Mon Mar 31 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1796ms 23ms 312.6MB 1763ms 37ms ldc2 1.40.1
d 1.d 2658ms 12ms 314.7MB 2843ms 40ms dmd 2.110.0
ruby 1.rb 4874ms 16ms 109.4MB 4770ms 90ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 70.1MB 4937ms 43ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 793.7MB 6597ms 650ms truffleruby 24.2.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 163ms 2.1ms 209.9MB 137ms 13ms ldc2 1.40.1
d 1.d 229ms 3.0ms 212.0MB 200ms 10ms dmd 2.110.0
ruby 1.rb 494ms 2.7ms 20.3MB 470ms 10ms ruby/yjit 3.4.2
ruby 1-m.rb 575ms 60ms 422.2MB 1147ms 167ms truffleruby 24.2.0
ruby 1.rb 937ms 6.7ms 19.6MB 910ms 13ms ruby 3.4.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1478ms 22ms 63.8MB 1397ms 67ms ruby/yjit 3.4.2
ruby 1.rb 1855ms 2.6ms 63.1MB 1780ms 60ms ruby 3.4.2
d 1.d timeout 0.0ms 18.0MB 4970ms 17ms dmd 2.110.0
d 1.d timeout 0.0ms 16.5MB 4967ms 20ms ldc2 1.40.1
ruby 1.rb timeout 0.0ms 347.0MB 4763ms 1433ms truffleruby 24.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 159ms 1.0ms 25.6MB 127ms 17ms ruby/yjit 3.4.2
ruby 1.rb 185ms 1.3ms 25.1MB 153ms 17ms ruby 3.4.2
d 1.d 1026ms 5.0ms 12.3MB 1000ms 13ms ldc2 1.40.1
d 1.d 1314ms 5.4ms 14.5MB 1293ms 10ms dmd 2.110.0
ruby 1.rb timeout 0.0ms 353.2MB 4600ms 1553ms truffleruby 24.2.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2552ms 5.3ms 8.1MB 2543ms 0ms ldc2 1.40.1
d 1.d 2909ms 4.5ms 10.2MB 2897ms 3ms dmd 2.110.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 451ms 9.4ms 8.1MB 440ms 0ms ldc2 1.40.1
d 1.d 527ms 1.2ms 10.2MB 517ms 0ms dmd 2.110.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 372ms 5.7ms 3.0MB 1427ms 0ms ldc2 1.40.1
d 2-im.d 1115ms 14ms 3.0MB 4320ms 0ms ldc2 1.40.1
d 1-i.d 1491ms 12ms 2.9MB 1487ms 0ms ldc2 1.40.1
d 1.d 3113ms 20ms 2.9MB 3103ms 0ms ldc2 1.40.1
d 2-i.d 3238ms 3.0ms 2.9MB 3230ms 0ms ldc2 1.40.1
d 1.d 3557ms 6.9ms 4.6MB 3543ms 0ms dmd 2.110.0
d 1-im.d 4492ms 39ms 5.0MB 17530ms 3ms dmd 2.110.0
d 1-i.d timeout 0.0ms 4.5MB 4990ms 0ms dmd 2.110.0
d 2-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.110.0
d 2-im.d timeout 0.0ms 4.9MB 19687ms 13ms dmd 2.110.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 36ms 1.2ms 3.0MB 110ms 0ms ldc2 1.40.1
d 2-im.d 99ms 0.8ms 3.0MB 347ms 0ms ldc2 1.40.1
d 1-i.d 124ms 0.1ms 2.9MB 113ms 0ms ldc2 1.40.1
d 1.d 262ms 1.2ms 2.9MB 253ms 0ms ldc2 1.40.1
d 2-i.d 267ms 0.6ms 2.9MB 260ms 0ms ldc2 1.40.1
d 1.d 298ms 3.0ms 4.6MB 290ms 0ms dmd 2.110.0
d 1-im.d 375ms 1.8ms 5.0MB 1437ms 0ms dmd 2.110.0
d 2-im.d 524ms 1.1ms 4.6MB 2003ms 0ms dmd 2.110.0
d 1-i.d 853ms 9.4ms 4.5MB 840ms 0ms dmd 2.110.0
d 2-i.d 1364ms 20ms 4.8MB 1357ms 0ms dmd 2.110.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 193ms 1.0ms 49.2MB 180ms 3ms ldc2 1.40.1
d 1.d 624ms 3.3ms 49.1MB 613ms 3ms dmd 2.110.0
ruby 6.rb 2060ms 10ms 23.0MB 2030ms 13ms ruby/yjit 3.4.2
ruby 6-m.rb 2165ms 97ms 405.7MB 5593ms 363ms truffleruby 24.2.0
ruby 6.rb 3848ms 36ms 22.5MB 3820ms 10ms ruby 3.4.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 24ms 0.4ms 11.1MB 17ms 0ms ldc2 1.40.1
d 1.d 67ms 0.6ms 13.1MB 60ms 0ms dmd 2.110.0
ruby 6.rb 266ms 4.3ms 15.0MB 247ms 10ms ruby/yjit 3.4.2
ruby 6.rb 437ms 2.4ms 14.5MB 420ms 7ms ruby 3.4.2
ruby 6-m.rb 815ms 10ms 363.4MB 2020ms 177ms truffleruby 24.2.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1.8ms 0.1ms 2.9MB 0ms 0ms ldc2 1.40.1
d 1.d 2.2ms 0.3ms 5.0MB 0ms 0ms dmd 2.110.0
ruby 1.rb 35ms 0.4ms 142.2MB 14ms 28ms truffleruby 24.2.0
ruby 1.rb 52ms 3.5ms 12.9MB 34ms 2ms ruby 3.4.2
ruby 1.rb 53ms 0.9ms 13.0MB 34ms 6ms ruby/yjit 3.4.2

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 58ms 0.8ms 15.7MB 60ms 10ms ldc2 1.40.1
d 2.d 238ms 1.6ms 22.5MB 243ms 7ms dmd 2.110.0
ruby 1.rb 252ms 3.6ms 29.1MB 220ms 20ms ruby 3.4.2
ruby 1.rb 256ms 3.5ms 28.4MB 227ms 17ms ruby/yjit 3.4.2
ruby 1-m.rb 4493ms 172ms 518.1MB 11833ms 350ms truffleruby 24.2.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 451ms 1.8ms 141.8MB 430ms 23ms ldc2 1.40.1
ruby 1.rb 2091ms 5.7ms 132.7MB 2000ms 77ms ruby 3.4.2
ruby 1.rb 2116ms 29ms 135.1MB 2017ms 83ms ruby/yjit 3.4.2
d 2.d 2467ms 2.2ms 158.8MB 2483ms 27ms dmd 2.110.0
ruby 1.rb timeout 0.0ms 495.0MB 13197ms 370ms truffleruby 24.2.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 671ms 8.6ms 47.3MB 2010ms 17ms ldc2 1.40.1
d 1-m.d 1945ms 21ms 49.5MB 5917ms 17ms dmd 2.110.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 86ms 1.5ms 39.7MB 243ms 7ms ldc2 1.40.1
d 1-m.d 210ms 11ms 41.1MB 620ms 7ms dmd 2.110.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 129ms 1.6ms 5.9MB 120ms 0ms ldc2 1.40.1
d 1.d 176ms 0.6ms 7.8MB 167ms 3ms dmd 2.110.0
ruby 1.rb 338ms 2.7ms 13.5MB 320ms 7ms ruby/yjit 3.4.2
ruby 1.rb 534ms 7.9ms 13.0MB 517ms 7ms ruby 3.4.2
ruby 1-m.rb 679ms 33ms 375.8MB 1217ms 147ms truffleruby 24.2.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 375ms 1.9ms 5.9MB 363ms 13ms ldc2 1.40.1
d 1.d 513ms 1.8ms 7.8MB 497ms 17ms dmd 2.110.0
ruby 1.rb 880ms 3.0ms 13.5MB 857ms 7ms ruby/yjit 3.4.2
ruby 1-m.rb 1252ms 51ms 416.2MB 1803ms 183ms truffleruby 24.2.0
ruby 1.rb 1490ms 12ms 13.0MB 1470ms 7ms ruby 3.4.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 57ms 0.4ms 5.9MB 50ms 0ms ldc2 1.40.1
d 1.d 79ms 1.4ms 8.2MB 70ms 0ms dmd 2.110.0
ruby 1.rb 196ms 2.7ms 13.5MB 177ms 7ms ruby/yjit 3.4.2
ruby 1.rb 292ms 5.2ms 12.9MB 273ms 0ms ruby 3.4.2
ruby 1-m.rb 513ms 36ms 360.4MB 1000ms 140ms truffleruby 24.2.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 294ms 0.6ms 7.1MB 280ms 0ms ldc2 1.40.1
d 1.d 2187ms 34ms 9.0MB 2173ms 0ms dmd 2.110.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 15ms 0.1ms 3.0MB 10ms 0ms ldc2 1.40.1
d 1.d 96ms 6.0ms 4.6MB 83ms 0ms dmd 2.110.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 962ms 3.8ms 312.7MB 933ms 30ms ldc2 1.40.1
d 1.d 1727ms 3.9ms 314.7MB 1863ms 40ms dmd 2.110.0
ruby 1-m.rb 4071ms 251ms 628.9MB 10250ms 363ms truffleruby 24.2.0
ruby 1.rb timeout 0.0ms 94.3MB 4930ms 50ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 94.8MB 4937ms 50ms ruby/yjit 3.4.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 194ms 1.6ms 312.6MB 160ms 20ms ldc2 1.40.1
d 1.d 334ms 0.6ms 314.7MB 303ms 23ms dmd 2.110.0
ruby 1-m.rb 2113ms 104ms 582.3MB 5393ms 277ms truffleruby 24.2.0
ruby 1.rb 3439ms 28ms 38.3MB 3403ms 23ms ruby/yjit 3.4.2
ruby 1.rb 4410ms 17ms 37.8MB 4373ms 23ms ruby 3.4.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 361ms 1.4ms 2.9MB 350ms 0ms ldc2 1.40.1
d 2.d 364ms 3.8ms 2.9MB 353ms 0ms ldc2 1.40.1
d 1.d 684ms 1.4ms 4.6MB 673ms 0ms dmd 2.110.0
ruby 2.rb 830ms 8.7ms 322.7MB 1090ms 113ms truffleruby 24.2.0
d 2.d 2033ms 2.7ms 4.6MB 2023ms 0ms dmd 2.110.0
ruby 2.rb timeout 0.0ms 12.9MB 4987ms 0ms ruby 3.4.2
ruby 2.rb timeout 0.0ms 13.5MB 4980ms 3ms ruby/yjit 3.4.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 38ms 0.3ms 2.9MB 30ms 0ms ldc2 1.40.1
d 1.d 39ms 0.2ms 2.9MB 30ms 0ms ldc2 1.40.1
d 1.d 80ms 15ms 4.6MB 70ms 0ms dmd 2.110.0
d 2.d 207ms 1.5ms 4.6MB 193ms 0ms dmd 2.110.0
ruby 2-m.rb 310ms 2.6ms 310.1MB 543ms 113ms truffleruby 24.2.0
ruby 2.rb 1066ms 0.5ms 13.5MB 1047ms 3ms ruby/yjit 3.4.2
ruby 2.rb 2789ms 66ms 12.9MB 2773ms 0ms ruby 3.4.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 288ms 1.2ms 45.1MB 277ms 0ms ldc2 1.40.1
d 1.d 360ms 0.3ms 77.3MB 340ms 0ms dmd 2.110.0
d 2.d 842ms 0.8ms 49.1MB 823ms 0ms ldc2 1.40.1
d 2.d 1165ms 0.8ms 48.7MB 1150ms 7ms dmd 2.110.0
ruby 1.rb timeout 0.0ms 325.4MB 4847ms 140ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 327.0MB 4853ms 137ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 709.5MB 5073ms 150ms truffleruby 24.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 59ms 1.2ms 12.9MB 50ms 0ms ldc2 1.40.1
d 1.d 76ms 0.3ms 27.2MB 67ms 0ms dmd 2.110.0
d 2.d 207ms 0.4ms 17.0MB 193ms 0ms ldc2 1.40.1
d 2.d 293ms 2.4ms 19.0MB 280ms 0ms dmd 2.110.0
ruby 1-m.rb 1735ms 26ms 487.2MB 2477ms 167ms truffleruby 24.2.0
ruby 1.rb 3439ms 35ms 131.8MB 3347ms 77ms ruby/yjit 3.4.2
ruby 1.rb 4550ms 60ms 131.1MB 4463ms 77ms ruby 3.4.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2429ms 4.7ms 8.1MB 2357ms 440ms ldc2 1.40.1
d 1.d 4342ms 20ms 10.2MB 4310ms 447ms dmd 2.110.0
ruby 1.rb timeout 0.0ms 46.7MB 4923ms 67ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 126.8MB 4890ms 100ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 457.8MB 13330ms 427ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 578ms 1.1ms 8.0MB 553ms 100ms ldc2 1.40.1
d 1.d 1026ms 2.5ms 10.2MB 990ms 123ms dmd 2.110.0
ruby 1-m.rb 1582ms 157ms 399.4MB 4173ms 207ms truffleruby 24.2.0
ruby 1.rb 1703ms 3.1ms 46.2MB 1657ms 33ms ruby 3.4.2
ruby 1.rb 1706ms 60ms 127.5MB 1643ms 50ms ruby/yjit 3.4.2

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 577ms 2.9ms 171.9MB 760ms 17ms ldc2 1.40.1
d 3.d 1297ms 1.7ms 172.8MB 1497ms 13ms dmd 2.110.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 64ms 4.3ms 25.1MB 77ms 0ms ldc2 1.40.1
d 3.d 137ms 3.3ms 30.4MB 150ms 0ms dmd 2.110.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 4833ms 87ms 4.3MB 4803ms 357ms ldc2 1.40.1
d 1.d timeout 0.0ms 6.4MB 4937ms 307ms dmd 2.110.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1201ms 6.5ms 4.0MB 1190ms 83ms ldc2 1.40.1
d 1.d 2084ms 6.8ms 6.6MB 2040ms 137ms dmd 2.110.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3594ms 3.1ms 3.9MB 3583ms 0ms ldc2 1.40.1
d 1.d 3637ms 18ms 8.3MB 3630ms 0ms dmd 2.110.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 0ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 3ms ruby/yjit 3.4.2
ruby 4.rb timeout 0.0ms 463.4MB 5177ms 250ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 901ms 0.5ms 3.4MB 890ms 0ms ldc2 1.40.1
d 1.d 923ms 4.7ms 5.3MB 913ms 0ms dmd 2.110.0
ruby 4.rb 4892ms 24ms 472.1MB 5177ms 213ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4980ms 0ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.6MB 4980ms 0ms ruby/yjit 3.4.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 228ms 0.9ms 3.1MB 220ms 0ms ldc2 1.40.1
d 1.d 233ms 1.6ms 4.9MB 223ms 0ms dmd 2.110.0
ruby 4.rb 1453ms 12ms 389.8MB 1777ms 143ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4980ms 0ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.8MB 4983ms 0ms ruby/yjit 3.4.2